Tham khảo tài liệu 'genki 1 an integrated course in elementary japanese1 phần 7', ngoại ngữ, nhật - pháp - hoa- others phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 9 affirmative the past tense is used both with words like Mi disconnected from the present and t already connected with the present . and I did the homework yesterday. ÍAỈât ì L LAo I have already done the homework. With lhe negative the past is used to talk about a finished time period like but 0 3 is used if your intention is to talk about how things stand now not yet . and Ỉ did not do the homework yesterday. L C . -tf vo L LĨ Zív 1 have not done the homework yet. have not . . . yet This use of can be found both with verbs describing changes and with verbs describing activities as defined in Lesson 7. X - s L lì Ì tz ỳ X k ầ -tìrAo Sue has not woken up yet. htx. ĩri Ỉ-. I haven t eaten lunch yet. change activity 6 We learned in Lesson 6 that b tj added to a sentence means because. 1 didn t have breakfast. Because I was busy. In this lesson we learn to incorporate the explanation clauses in the statements themselves rather than adding them as separate sentences. You can simply transpose the explanation sequence to the beginning of a sentence for which the explanation is offered. explanation situation o situation because explanation . explanation therefore situation . L . - I will study this evening because we will have an exam tomorrow. We will have ait exam tomorrow therefore I will study this evening. o tzh s th ZHỷ ầ -tf v C l tzữ TTr V . We didn t go out because it was cold. It was cold therefore I didn t go out. Note that the resulting order of elements resembles that of a therefore sentence more closely than that of a because clause in English. Before the conjunction Ù b you find both the long and short forms. Thus the tc ỳ clauses in the above examples can be rewritten as L tci ikir ằ -f Zeb and Ze 3 I ỎẶ t- b. The long form before Zeb is more polite and is frequently found in request and suggestion sentences. 9 ầ i L1 9 o Let s go to see Kabuki. I have tickets. 3The long form before b is inappropriate when the entire sentence ends in a short .